CaHo2Se4 — Properties & Data | MatWorld

CaHo2Se4

ceramic

· JVASP-53592· CaHo2Se4

CaHo₂Se₄ is a ternary ceramic compound combining calcium, holmium, and selenium—a rare-earth selenide material primarily of research interest rather than established industrial production. This compound belongs to the family of rare-earth chalcogenides, which are investigated for optoelectronic, photonic, and solid-state device applications where rare-earth dopants provide unique luminescent or magnetic properties. While not yet widely deployed in commercial products, materials in this family show promise for specialized applications requiring the specific electronic or thermal characteristics that rare-earth-selenium chemistry can offer.

photonic materials researchrare-earth optoelectronicssolid-state luminescencehigh-temperature ceramicsthermal management compoundsexperimental semiconductors

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.848	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.142	eV	DFT · OptB88vdW
↳	1.787	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	17.67	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.214	-	DFT · OptB88vdW
↳	5.723	-	DFT · TBmBJ
Electron Effective Mass(m*e)	1.280	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.040	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00259	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00170	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-199.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	263	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	27.56	%	DFT · TBmBJ

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.997	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

CaHo2Se4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental